Refactor guest view availability to be API not permission based.

chrome/browser/guest_view/extension_options/extension_options_guest.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/guest_view/extension_options/extension_options_guest.h"
 
 #include "base/values.h"
 #include "chrome/browser/extensions/chrome_extension_web_contents_observer.h"
 #include "chrome/browser/guest_view/extension_options/extension_options_constants.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/common/extensions/api/extension_options_internal.h"
 #include "chrome/common/extensions/manifest_url_handler.h"
 #include "content/public/browser/render_process_host.h"
 #include "content/public/browser/site_instance.h"
 #include "content/public/browser/web_contents.h"
 #include "extensions/browser/extension_function_dispatcher.h"
 #include "extensions/browser/extension_registry.h"
 #include "extensions/common/extension.h"
 #include "extensions/common/extension_messages.h"
 #include "extensions/common/feature_switch.h"
+#include "extensions/common/features/feature.h"
+#include "extensions/common/features/feature_provider.h"
 #include "extensions/common/permissions/permissions_data.h"
 #include "ipc/ipc_message_macros.h"
 
 using content::WebContents;
 
 // static
 const char ExtensionOptionsGuest::Type[] = "extensionoptions";
 
 ExtensionOptionsGuest::ExtensionOptionsGuest(
     content::BrowserContext* browser_context,
     int guest_instance_id)
     : GuestView<ExtensionOptionsGuest>(browser_context, guest_instance_id) {
 }
 
 ExtensionOptionsGuest::~ExtensionOptionsGuest() {
 }
 
-bool ExtensionOptionsGuest::CanEmbedderUseGuestView(
-    const std::string& embedder_extension_id) {
-  const extensions::Extension* embedder_extension =
-      extensions::ExtensionRegistry::Get(browser_context())
-          ->enabled_extensions()
-          .GetByID(embedder_extension_id);
-  if (!embedder_extension)
-    return false;
-  return embedder_extension->permissions_data()->HasAPIPermission(
-      extensions::APIPermission::kEmbeddedExtensionOptions);
+extensions::Feature* ExtensionOptionsGuest::GetFeature() {
+  return extensions::FeatureProvider::GetAPIFeatures()->GetFeature(
+      "guestViewInternal");
 }
 
 // static
 GuestViewBase* ExtensionOptionsGuest::Create(
     content::BrowserContext* browser_context,
     int guest_instance_id) {
   if (!extensions::FeatureSwitch::embedded_extension_options()->IsEnabled()) {
     return NULL;
   }
   return new ExtensionOptionsGuest(browser_context, guest_instance_id);
@@ skipping 73 matching lines @@
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
   return handled;
 }
 
 void ExtensionOptionsGuest::OnRequest(
     const ExtensionHostMsg_Request_Params& params) {
   extension_function_dispatcher_->Dispatch(
       params, guest_web_contents()->GetRenderViewHost());
 }